WhatsApp is displaying unsupported photos

Hello, whenever I try to send an image or a video, the menu that displays the photos/videos is showing unsupported media. I tried using Google Photos to send a photo but it displays a message that the file format is not supported. Even through they're all JPEG formats.

Edit: I attached a screenshot of the menu. (Note that there are a few photos that are showing) but the majority of my gallery is not.

Edit 2: this problem is also appearing in Google Allo..

Attached Images

• Screenshot_20171206-192926.jpg (100.4 KB)